Combined stop and emergency valve.



Ptented May 18, 1909.

. 2 SHEETS-SHEET l.

. S H H kl W. KIESER.

COMBINED STOP AND EMERGENCY VALVE.

I APPLICATION FILED NOV. 2, 1907. v

if y

- W wzr mm P/wlfn sses I W. KIESER. COMBINED STOP AND EMERGENGY VALVE.

APPLICATION FILED NOV. 2, 1907. v

Patented May 18, 1909.

2 SHEETS-SHEET 2.

M17635 as: 'K WM g.-

"QUE/FEB. KHESER, OF BERLIN, GERB'LA Y, ASSIGNOR TO GENERAL ELECTRICCOMPANY, A

CORPORATION OI NEW YORK.

SOEEBINED STOP AND EMERGENCY VALVE.

Specification of Letters Patent.

Patented May 18, 1909.

serial No. 400,345.

wk; am it may concern:

in). ALTER KIEsER, a

Wn that I, H citiyen of Swimriend, residing at Berlin, rm n3, haveinvented certain new and :i' i. grov rents i n mined Stop and 1 vnefollowing .esired to open ining or close it 111' ine or other suppiiedwith *e. The valve mm by which it A y ciosed under T conditions andreadily reset in lion after such action. osje'ct of the invention is theproan improved valve oithe type de- 1 it. structure and st"- secretion.

showing the ch when an ion through Fig. 4

ends governor cchernsm; end 5 is an axis norn'ini and emergency gov- 1 eoody or casing 6 has it diaphr: which divides the interior of the iotviochambers. The disphregm' -10 is p ted with e vsive jseet 7 end the pesdthrongs seat from. one e o the other controhed by a valve mounted onlower endv of the die 9.

Secured to the upper porqnged cover 16 prong-hox 11 which ieskageoutward along the stem. We pi ms 12 are attached to the upper porstem.

. which limits its u pwerd movement due to the rotation of: the stern.

A c flindricci casing; 16 is etteched by e threaded joint to the upperend ot the cesine 13. The valve stem passes centrzfiy through the twomembers 13 and 16, end in the sesce betweenthe stem and the inner wallsof the casing is ioceted a compression spring or mo tor 17 which bearsat its lower end againstthe nut 1-52 and at its upper end against ti-iehead 18 that closes one end of the chamber Within the casing 16. Theouter portion of the heed 18 forms e piston which is in slidingengagement with the bore of the cyiinder 1Q secured on the upper end ofthe stem *3, cylinder and piston thus forming a dsshrpot for cushioningthe stuideuv closing move ment of the valve and stem when reieesed. Ahandle or hand-wheei 20 is attached to the valve stem shove the cylinder19 (T ter.- ins and ciosing the vcive by hand and reset ting theemergency device. I

The hitch or look 15 is formed on rocksheit 21 mounted in the casing 13.C ne end of a clock spring 22 is secured to the square end 23 of theshaft 23, the other end of the spring being attached. to e pin 24projecting from the face of the casing .13. The tendency of this springat all times is to turn the shaft 21 and release the lock 15 fromengagement with the nut. When so re leased the nut is forced downward bythe spring 17, carrying with it the stem 9 and the valve 8 and quicklycutting oi; the supply of motive fluid. The lock is heid in the positionshown in Fig. 1 by means oi an arm 25 attached to one end of the sheftZland e wire rope or other connection 26 l ading from the outer end of thearm to a hitch 27 35 and valve 8 to the mounted on the casing of theturbine or other primemover adjacent the governing mechanism. When themechanism is operating normally the latch 27 occupies the 5 positionshown in Fig. 4 andthe rope or other connection 26 holds the arm 25 inthe position shown in Fig. 1 against the turning action of the spring22.

The normal speed governor consists of a disk 28 which is attached to androtates with one of the constantly rotating members of the prime mover.This disk carries two suitablymounted centrifugally acting weights 29which move outward under an increase in speed againstthe opposing actionof the spring 30 and by means of suitable connections and a valve orvalves control the quantity of motive fluid used in the apparatus.Mounted in the upper portion of the casing which surrounds and supportsthe spring 30 is a pin 31; This pin tends to move outward through theopening 32 in the casing; when the speed of rotation increases. Itsoutward movement is opposed by the action of the spring: 33 but underthe influence of an abnormal increase in speed which would tend todamage the apparatus thev pm moves to the posltion shown in dottedlines, Fig. 5,

and as it revolves strikes the end of the lever 34 which normally holdsthe latch27 in the 8 may be raised or lowered by turning; the

stem-9 in the nut by means of the handle 20. After the valve has beenclosed under emergency conditions in the manner above described, the nutis returned to its normal position, Fig. 1, by rotating the threadedstem 9 without raising the valve 8 from its seat. The movement of thenut also compresses the spring 17. The arm 25 is then turned to engagethe lock 15 with the nut and secured in this position bythe engagementof the latch 27 with the end of the lever 34, the movement of the latchbeing transmitted to the arm 25 by the rope 26. To facilitate the latteroperation the latch 27 'is provided with a suitable handle 36. The

attendant grasps the handle and by a single movement brings both thelatch and lever and the lock and nut into normal position. The machinemay then be started up again by turning the handle 20 to raise the valve8,

' thus admitting steam or other motive fluid thereto. Obviously, the arm25 may be con nected' to other tripping: devices than the pars tieulartype shown. This device is merely illustrativeof one of numerouspossible apphcations'of the invention. The valve will op crate erpiallywell with its stem in a horizontal or any other position than theverticalone chosen for the drawings. Y

in accordance with the provisions of the patent statutes, I havedescribed the princi- .ple of operation of my invention, together withthe apparatus which I now consider to represent the best embodimentthereof; but 1 desire to have it understood that the apparatus shown isonly illustrative, andlthat the invention can be carried out by othermeans.

What I claim as new and desire to secure by LettersPatent oi the UnitedStates, is,

1. In combination, a valve body, a valve located therein, astem on whichthe valve is mounted, a, wheel-for opening and closing the valve, amotor external to the body for closing the valve under certainconditions, a device normally restraining the motor from operating,means for releasing said device, and means actuated'by the wheel forrestoring the motor to operative condition.

2. In combination, a valve body, a valve therein, a stem on which thevalve is mounted, a wheel cooperating with the stem for opening andclosing the valve under normal conditions, a motor exterior to the bodyfor forcibly moving the valve to close it under certain conditions, adevice normally rcstraining the motor from operating, means forreleasing said device, and means actuated by the wheel for restoring themotor to operative condition.

3. In combination, a casing or body, a valve located therein, a stem forthe valve, a motor for forcibly moving the valve to close it undercertain conditions, means for resetting the motor, and a wheel on thestem for rotating, it in 6116 direction to. cause said means to resetthe motor, and for rotating it in either direction after the motor isreset to open or close the valve. I

4. The combination of a valve body, a valve located therein, a valvestem having a threaded portion, a' nut engaging the threads on the stem,a potentially energized motor for moving the nut and stem longitudinallyto close the valve, a lock normally restraining the movement of the nutby the motor, a-device for releasing: the nut from the lock, and meansfor rotating the stem.

5. In combination, a casing'or body, a

valve located therein, a threaded valve stem,

a nut-cooperating with the stem and through which it passes, a locknormally restraining the *nut against longitudinal movement, a motor forforcibly moving the nut and stem when the lock is released to close thevalve,

and a handle on the stem for rotating it .to reset the motor and nut innormal position have been reset. 6. The combination of a valve, body, a

and to open and close the valve after they Locate l therein, a va vestem having a dud portion, a casing mounted on the V and through whichthe stem glasses, a nut inmrntedior longitudinal movement in n the(using and in engagement with the threaded portion of the stemfanabutment, a spring between the abutment and the nut which tends to movethe nut longitudinally, a locl: on the casing which holds the not itwill boss it; against the action of the spring, a device for moving thelock to release the nut, and means for rotating the stenr 7, .lncombination, a valve body, a valve located therein, s valve stem havinga threaded portion, a casing mounted on the body and through which thestem passes, a

nut mounted in one end of the casing which entrance the threaded portionof the stern, a

slim connection hetweon the nut and the a shoulder on the not whichlimits i enrent in one direction, an abutmenton the casings compressionspring between the abutment and the adjacent end of the nut, a ioch oncasing for holding the nut "t the action of the swing, a device for.

O the lock, and s handie for rotating combination, a valve body, avalvethcrein, a valve stem h eving a- 36 ortion, e nut engaging thethread l of the stern, e motor for forcibly "out and stem to close thevalve,

v restraining the movement of motor, 'a device for releasing roni thelock, dash-not for cushdre closing movement of the valve nut isreieased, and menus for stern. I :inetion, s valve body, a valve 'n, avaive having a 11031,;t sing mounted upon the 'ough. which the stemposses, ii lted one end the casing i with the threaded portion a springsurrounding the stem ano engaging one end of on the casing in conher endoi the spring, a lock nounted on the means i 6 loci-z, piston formed onthe i attached to the stem in slides, the piston and cylinsh-pot tocushion the closvalve when the lock is nd a wheel for rotating the stem.1 combination, a casing'or body, a located therein, a stem for thevaive, a

rneanr 5o operating it under normal conditions, spring for closing thevalve under emergency conditions, a device for holding the spring incondition for action, and a lockingmeons for restraining said device.

11. In combination, a casing or body, a valve located therein, a springwhich when released closes the valve, means forr'estraining: the spring,a motor which tends at all tirniis to move said means in a direction tocause it to release the spring, a latch. restraining the motor, and aspeed responsive device which releases the latch under certainpredetermined conditions.

12,111 combination, a casing or body, valve located therein, a iockholding the valve in any given position, a spring which i when releasedfrom restraint closes the valve, a means restraining the spring, agovernor responsive to load changes for releasing said means, and amotor which performs the work of moving said means when released by thegovernor.

13. In combination, a valve body, a valve located therein, or casingsecured to the body, a valve stem having a threaded portion, a nutslidably mounted in the casingand cooperating with the threaded portionof the stern, a motor tending to move the nut longitudinally, a rockshaft journaledin the casing adjacent the nut, a lock on therock sheftwhich engages the nut to hold it against longitudinal movement, a springwhich tends to turn the shaft to release the nut from the lock, meansrestraining the action of the spring under normal, conditions, a devicewhich under emergency conditions acts on said means to permit the ringto operate, and wheel for rotating the stern. I

M, The combination of a valve body, a valve located therein, stem forthe valve having a threaded portion, a member n10unted on the bodythrough which the stem passes, a nut mounted for longitudinal movementin said member which is in engagement with the threaded portion of thestem, a motor for moving the nut and. stern.longi tudinztlly to closethe vaive, a lock mounted on said member which normally engages the nutand restrains the movement of the stem and nut by the, motor, a devicefor disengaging the loch and the out under certain conditionsto permitthe motor to close the valve quickly, and means for rotating the stem toopen and closethevelve iucre siowly under normal conditions.

15. The combination off a valve body, a valve located therein, a valvestem having one of its ends rotatably connected with the vaive, stuiiingbox on said body, the stem passing: outwardly through said ho endhavinge threaded portion beyond it; it mom 3 20 her mounted on the bodythrough wh h the outer portion of. the stem passes, a nut" mounted forlongitudinal movement in the memher which engages the threaded portionof the stem, at motor for moving the stem and nut longitudinally toclose the vtilve, means for limiting the outward movement of the nut, alock pivotclly mounte'dcn said mem her which normally engages the nutand holds it against inward movement, e'device 13o for disengaging thenut and look under cer- In Witness whereof, I have hereunto set tiiinconditions to permit the'motor' to close my hand this 5th day ofOctober, 1907. t 1e valve quickly and a wheel for rotating v the stem toreset the nut when it is desired WALTER KIESER' 5 to restore the valveto normal condition and Witnesses:

to open and close the valve more slowly FRIEDRICH GANZERT,

when said condition is restored. LUDWIG CEIBEIC.

